.case_nav{
	text-align: center;
}

.case_nav>div a{
	text-decoration: none;
	color: #000000;
	font-size: 14px;
	padding: 0 2px 12px 2px;
	border-bottom: 2px solid #fff;
}

.case_nav .case_nav1>a{
	color: #ce251f;
	border-color: #ce251f;
}

.case_nav>div a:hover{
	color: #ce251f;
	border-color: #ce251f;
}

.position{
	color: #c2c2c2;
	font-size: 14px;
	margin-top: 34px;
}

.position>a{
	color: #c2c2c2;
	font-size: 14px;
}

.case_head>img{
	display: block;
	width: 100%;
	margin: 0 auto 30px;
}

.case_head>p{
	width: 80%;
	margin: 0 auto;
	line-height: 26px;
	text-align: center;
	font-size: 14px;
	color: #919191;
}

.case_logo_title{
	font-size: 18px;
	font-weight: 600;
	text-align: center;
}

.case_logo_image{
	display: block;
	margin: 34px auto 36px;
	width: 80%;
}

.case_logo_des{
	width: 80%;
	margin: 0 auto;
	font-size: 12px;
	color: #bfbfbf;
	text-align: center;
}

.case_logo_item2{
	margin: 92px auto;
}

.case_logo_item4{
	margin: 92px auto;
}

@media screen and (max-width: 768px){
	.case_logo_image{
		margin: 17px auto 18px;
	}
	.case_logo_item2{
		margin: 30px auto;
	}
	.case_logo_item4{
		margin: 30px auto;
	}
}